Patched font codes did not match Powerline doc

According to Powerline documentation font glyph have following codes: 
U+E0B0 	- Rightwards black arrowhead
U+E0B1 	- Rightwards arrowhead
https://powerline.readthedocs.org/en/latest/fontpatching.html?highlight=glyph

**Steps to reproduce:**

Install patched font from Powerline fonts repository:
```bash
sudo mkdir -p /usr/share/fonts/opentype
sudo wget -P /usr/share/fonts/opentype "https://github.com/Lokaltog/powerline-fonts/raw/master/DroidSansMono/Droid Sans Mono for Powerline.otf"
sudo fc-cache -f
```

Change your terminal (XFCE, Gnome) font to the Droid Sans Mono for Powerline

Follow powerline-shell setup instructions (i.e. download powerline-shell.py script, change .bashrc)

Close all terminal emulators (and maybe restart X)

5. Open terminal emulator and you are expected to see invalid characters in powerline-shell promt